<template>
  <d2-container>
    <el-upload
  class="upload-demo"
  action="http://localhost:9097/api/file/upload"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
  :before-remove="beforeRemove"
  multiple
  :limit="3"
  :on-exceed="handleExceed"
  list-type="picture"
  :file-list="fileList">
  <el-button size="small" type="primary">点击上传</el-button>
  <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>
<el-dialog :visible.sync="dialogVisible" append-to-body>
  <img width="100%" fit="contain" :src="dialogImageUrl" alt="">
</el-dialog>

  </d2-container>
</template>

<script>
export default {
    data() {
      return {
        dialogImageUrl: "",
        dialogVisible: false,
        fileList: []
      };
    },
    methods: {
      handleRemove(file, fileList) {
        console.log(file, fileList);
      },
      handlePreview(file) {
        console.log(file);
        this.dialogImageUrl = file.url;
        this.dialogVisible = true;
      },
      handleExceed(files, fileList) {
        this.$message.warning(`当前限制选择 3 个文件，本次选择了 ${files.length} 个文件，共选择了 ${files.length + fileList.length} 个文件`);
      },
      beforeRemove(file, fileList) {
        return this.$confirm(`确定移除 ${ file.name }？`);
      }
    }
  }
</script>

     
 <style scoped>
 </style>